Panorama is an important component in virtual reality. Typically, in virtual panorama stitching, the images should share overlapping regions, and beyond the overlapping regions, the features should exhibit apparent differences, otherwise, the stitching could fail. We propose an image stitching method based on feature matching for virtual environment, at the key frames, irregular complex color model is employed to bind the scene in order to enhance the features of the images. Experiments show that the proposed method achieves better performance compared to the former.